51% (2006)

43% (2007)

61% (1976)

75% (1987)

57% (1975)

50% (1974)

40% (1972)

58% (1980)

55% (2008)

66% (1959)

54% (1990)

68% (1977)

10% (1988)

69% (1980)

46% (1968)

0% (1970)

0% (2023)

30% (1970)

37% (2005)

30% (2017)